Recolonization of native and invasive plants after large-scale clearance of a temperate coastal dunefield

Kim, Dae Hyun; Lee, Jung‐Yun; Seo, Jongcheol; Song, Insang

doi:10.1016/j.apgeog.2019.05.007

Cited by 3 publications

(2 citation statements)

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“…However, eradication of alien plants may also encourage synanthropisation. Kim et al (2019) noted for Korea that invasive species removal was costly and, if not done very carefully, could even increase the initial invasion. Novoa et al (2013) found that dunes regenerated after Carpobrotus removal were occupied by opportunistic ruderal species, which competed with native dune plants.…”

Section: Discussionmentioning

confidence: 99%

Synanthropisation of coastal vegetation in southern Spain

Enríquez‐de‐Salamanca

2022

Mediterr. Bot.

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Coastal dunes have high ecological value, but are often damaged or overexploited by beach tourism. The main problems for the vegetation of this ecosystem are the physical destruction and the synanthropisation, the latter due to the colonisation of both alien and apophyte species, favoured by human action. This study analyses the degree of synanthropisation of the vegetation of a stretch of coastline in southern Spain, by systematically surveying the flora present in six biotopes: beach, foredune, mid-dune, back-dune, creek and rocky area. The percentage of synanthropic species was 51%, of which 33% are apophytes, mainly ruderal species and weeds, and 18% are alien species, mostly from gardens adjacent to the coastal zone. The degree of synanthropisation varies by biotope, ranging from zero on the beach to 63% on the back-dune, with a marked increase from the beach inland. Richness and diversity is highest in biotopes with higher synanthropisation, but at the cost of lower naturalness. Measures need to be taken to protect coastal vegetation, both from destruction and synanthropisation.

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Section: Discussionmentioning

confidence: 99%

Synanthropisation of coastal vegetation in southern Spain

Enríquez‐de‐Salamanca

2022

Mediterr. Bot.

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“…In comparison, there have been fewer opportunities for scientists to directly study recolonisation processes within human‐perceptible timescales. These direct opportunities often include studies of natural systems affected by human intervention over small spatial scales (Russell et al 2010, Collins et al 2014, Kim et al 2019), or they are in vitroexperiments with controlled designs (Hallatschek et al 2007). Large‐scale disturbance events such as forest fires provide a rare exception, where recolonisation processes can be studied directly in natural ecosystems over large spatial scales (Banks et al 2011).…”

Section: Introductionmentioning

confidence: 99%

First genomic snapshots of recolonising lineages following a devastating earthquake

Vaux,

Parvizi,

Duffy

et al. 2024

Ecography

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Large‐scale disturbance events provide ideal opportunities to directly study recolonisation processes in natural environments, via the removal of competitors and the formation of newly vacant habitat. A high magnitude earthquake in central New Zealand in 2016 created major ecological disturbance, with coastal tectonic uplift of up to ~ 6 m extirpating vast swathes of intertidal organisms. One of the affected species was Durvillaea antarctica (rimurapa or southern bull kelp), which is an important habitat‐forming intertidal macroalga capable of long‐distance dispersal. Across the complex fault system with varying amounts of uplift, the species was either locally extirpated or heavily reduced in abundance. We hypothesised that neutral priority effects and chance dispersal from other populations would influence which lineages would establish. We sampled individuals of D. antarctica across the uplift zone immediately after the earthquake in 2016 and then repeatedly sampled new recruits in the same areas between 2017 and 2020, using genotyping‐by‐sequencing to provide ‘before' and ‘after' genomic comparisons. Our results revealed strong geographic clustering but little evidence of new lineages establishing at disturbed sites, although populations at uplifted sites remain at remarkably low densities. We infer that recolonisation has thus far primarily originated from refugial, remnant patches within the uplift zone. To complement the phylogeographic analysis, we estimated oceanographic connectivity among the uplift zone sample locations. The connectivity modelling estimated that northbound dispersal of D. antarctica was more likely, but we have not yet detected southern genotypes in the recolonised populations. As the ongoing recolonisation process transitions from an ecological to an evolutionary timescale, change remains possible. This study provides the first genomic ‘snapshots' of a natural recolonisation process following a large‐scale ecological disturbance event, and ongoing research has the potential to reveal important insight into both micro‐ and macroevolutionary processes.

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